The RDL AV-HK1 is a professional stereo transformer isolation module designed to eliminate unwanted hum, noise, and ground-loop interference in audio systems. It provides galvanic isolation between unbalanced stereo audio connections, making it an effective solution for connecting computers, CD players, cassette players, and other consumer audio sources to professional mixers, amplifiers, and AV equipment.
Designed by Radio Design Labs (RDL), the AV-HK1 combines transformer-based isolation with a rugged metal enclosure for dependable use in both portable and permanent audio installations. Its compact design makes it particularly useful when unwanted noise occurs because audio devices are connected to different electrical grounds.
Eliminate Ground Loops and Audio Hum
Ground loops can create an audible hum or buzz when two pieces of audio equipment are connected through different electrical paths. The RDL AV-HK1 ground loop isolator addresses this problem by using transformer isolation to electrically separate the connected audio circuits while allowing the audio signal to pass through.
This makes the AV-HK1 useful for troubleshooting and preventing common grounding problems in commercial AV systems, conference rooms, offices, live sound setups, and installed audio systems.
Stereo Transformer Isolation
The AV-HK1 provides isolation for both left and right channels of an unbalanced stereo audio signal. The transformer-based design provides galvanic isolation between the source and destination equipment without requiring an external power supply.
The module is well suited for applications where an unbalanced consumer audio source needs to be connected to another audio device while reducing the possibility of ground-related noise.
Easy Connection for Consumer Audio Equipment
The AV-HK1 uses gold-plated phono (RCA) input and output connectors for straightforward connection to common consumer audio equipment. Two adapter cables are included for devices using the types of mini-plug connections commonly found on computers and portable audio equipment.
Clearly marked left and right channels make it easy to maintain correct stereo signal routing during installation.
Portable or Permanent Installation
A heavy-duty metal chassis provides durability for mobile applications while also making the AV-HK1 suitable for permanent AV installations. A mounting bracket is included for securing the module to a suitable surface or equipment location.
The RDL ULTRASTYLE™ dark finish gives the unit a professional appearance in both portable and installed systems.
RDL AV-HK1 Key Features
-
Stereo transformer isolation for unbalanced audio signals
-
Helps eliminate ground loops, hum, and unwanted audio interference
-
Provides galvanic isolation between connected audio devices
-
Designed for unbalanced stereo line-level audio
-
Gold-plated RCA/phono input and output connectors
-
Includes two adapter cables for connecting common consumer audio devices
-
Rugged metal enclosure for portable and permanent installations
-
Includes mounting bracket for fixed installation
-
Clearly identified left and right stereo channels
-
Passive transformer-isolated design requires no external power
RDL AV-HK1 Applications
The RDL AV-HK1 audio isolation module can be used in a wide variety of professional and commercial audio applications, including:
-
Eliminating ground-loop hum in audio systems
-
Connecting computers to professional audio equipment
-
Connecting consumer CD and media players to mixers
-
Connecting cassette players and other unbalanced sources
-
Commercial AV installations
-
Conference and meeting rooms
-
Office audio systems
-
Live sound and stage applications
-
Recording and production environments
-
Professional amplifiers and mixer inputs
-
Fixed and portable audio systems
RDL AV-HK1 Specifications
|
Product Type
|
Stereo transformer isolation module
|
|
Audio Configuration
|
Unbalanced stereo
|
|
Isolation
|
Transformer-based galvanic isolation
|
|
Inputs
|
Stereo phono/RCA
|
|
Outputs
|
Stereo phono/RCA
|
|
Ground Isolation
|
Yes
|
|
Chassis
|
Heavy-duty metal
|
|
Finish
|
RDL ULTRASTYLE™ dark finish
|
|
Included Accessories
|
Two adapter cables and mounting bracket
|
|
Installation
|
Portable or permanent
|
A Simple Solution for Hum and Ground-Loop Problems
When an audio system develops unwanted hum or buzz caused by ground-loop interference, the RDL AV-HK1 provides a simple way to introduce transformer isolation between connected equipment. Its stereo design, RCA connectivity, included adapter cables, and rugged construction make it a practical solution for both professional audio installations and portable AV systems.
For applications requiring stereo ground-loop isolation, unbalanced audio isolation, or hum reduction, the RDL AV-HK1 offers dependable transformer-based signal isolation without requiring external power.
